Angle sum property of quadrilateral
Product Code : SCL-BLE-12459
Angle sum property of quadrilateral (SKU SCL-BLE-12459) is an acrylic maths teaching aid with four detachable, colour-coded angle pieces that students lift out of a quadrilateral and arrange around a single point to form a complete circle. This angle sum of quadrilateral model shows directly that the four interior angles add up to 360 degrees.
Specifications
The model has a 29.5 x 29.5 cm acrylic base frame of 3 mm (0.3 cm) thickness with clearly marked quadrilateral vertices, four detachable colour-coded angle sectors and a separate plastic storage box, and it is used for individual work as well as classroom demonstration.
| Product | Angle sum property of quadrilateral |
| SKU | SCL-BLE-12459 |
| Concept | Interior angles of a quadrilateral, sum 360 degrees |
| Base frame | 29.5 x 29.5 cm, acrylic |
| Acrylic thickness | 3 mm (0.3 cm) |
| Detachable pieces | 4 colour-coded angle sectors |
| Storage | Separate plastic box |
Using the angle sum of quadrilateral model
Students remove the four angle pieces from the marked vertices and place them edge to edge around one point, where they close into a full circle, which shows by observation that the interior angles of a quadrilateral total 360 degrees before the proof by diagonals is written.
- Demonstrating that the interior angles of a quadrilateral sum to 360 degrees
- Individual or group activity in the maths lab
- Linking to the triangle angle-sum property through a diagonal
- Quadrilaterals unit of Class 8 and 9 (CBSE/NCERT)
Scope of supply and ordering
The listing covers one acrylic base frame, four detachable colour-coded angle pieces and one plastic storage box.
Frequently asked questions
What is included with the model?
One acrylic base frame of 29.5 x 29.5 cm, four detachable colour-coded angle pieces and a separate plastic storage box.
How does it show the 360 degree angle sum?
The four interior-angle pieces are removed and arranged around a single point; together they form a complete circle, which is 360 degrees.
What thickness is the acrylic?
The acrylic is 3 mm (0.3 cm) thick.
Related products
- Sum of 4 angles of quadrilateral
- Sum of 3 angles of triangle
- Properties of Parallelogram
- Exterior angle of regular polygon
More items for the school maths lab are in the maths lab kits range.
Request a quote
Send your requirement for the Angle sum property of quadrilateral (SKU SCL-BLE-12459), with quantity and delivery destination, through the JaincoLab enquiry page for a quotation. Institutions and contractors buying under a tender can also reach us via the tenders page.
